Machine for inserting metallic fastenings



A. s. CLARK MACHINE FOR INSERTINQ METALLIC FAsTENINGs Feb. 4, 1941.

FiledkApril 15, 1939 3 Sheets-Sheet l Fig? 1 Feb. 4, 1941. A. s. QLARK MACHINE FOR INSERTING METALLIC FASTENINGS Filed April l5, 1959 Feb. 4, 1941.v A. s.- CLARK 2,230,375

MACHNE FOR INSERTING METALLIC FASTENINGS .Filed April l5, 1959 3 sheets sheet 3v Fig? L Fig 8 M@ /NVE/VT Q."

Patented Feb. 4, 1941 UNiTEi) STATES PATENT `ortica MACHNE FOR INSERTING yME'IALlLIi'J FASTENINGS Application April 13, 1939,`SerialNo.' 26.75.00'

7 Claims.

This invention relates to machines for inserting fastenings and is illustrated herein as embodied in a machine of the type described in United States Letters Patent No. 1,815,295,

granted July 21, 1931, on an application of George Goddu.

The machine shown in the Goddu patent fastens a shoe upper in lasted relation to its insole by staples the legs of which are deected laterally of their crossbars before they enter the work in order to make them curl backward toward the direction of drive and away from the edge of the insole, thus anchoring them by this curvaturein the body of the insole. The shoe in contemplation in the Goddu patent has a ribless insole upon which the lasted upper margin is laid flat, and the backwardly directed hooks formed by the staple legs hold it firmly in place.

A principal object of the present invention is to improve, simplify, and cheapen staple inserting mechanism applicable to machines of this type, and conveniently the mechanism characteristic of the invention has been designed and shown as interchangeable with the analogous mechanism of the Goddu machine. Reference will be made to the Goddu patent cited for description of much that is common to the Goddu machine and the machine of the present invention.

In accordance with the invention, in one aspect, I have provided stapling mechanism comprising a driver operating in an obliquely downward and outward direction over the bottom and toward the lasting margin of a shoe in the machine, and staple forming means located in the line of drive.

In accordance with another feature of the invention a movement of 'the stapling mechanism in the opposite direction effects relative movement of an inside and an outside former to form the staple, and to retract the inside vformer near the end of such movement.

A further feature of the invention resides in means for swinging the stapling mechanism as a whole toward the shoe bottom, after its inward movement as discussed above, to release a latch which holds the driver in inoperative position.

This and other features of the invention com- 50 prising certain combinations and arrangements of parts will be apparent from the following description of a preferred embodiment ofthe invention shown in the drawings, in which- Fig. 1 is'a perspective elevation Aof the head of themachine; t

Fig. 22 is a side..`elevation of .a part of the novel sta-pling mechanism;

Fig, 3V is a side elevation partly in section of the stapling mechanism;

Fig. 4 is a plan view in the direction of the arrow IV in Fig. 3;

Fig. 5 is a plan View of the staple forming and driving mechanism;

Fig. 6'is a sectional view of the same, on the line VI-VI of Fig. 5;

Fig. 7 is a horizontal sectional View of the staple cutting and forming mechanism shown at the left end of Fig. 5; y

Fig. 8 is a detail oi the outside former slide 24; and

Fig. 9 isa detail of a substitute cutter block.

The illustrated machine is vof the type shown in the Goddu Patent No. 1,815,295, already mentioned, and the novel structure characterizing the present invention is designed to be readily substituted for the staple forming and driving mechanism of the Goddu machine. The stapling mechanism in the Goddu machine is mounted upon two operating shafts, numbered 54 and 244 in the patent. The novel mechanism is mounted on a carrier i E (Fig. 3) (corresponding to Goddus member 72). The carrier I6 slides on a straight member I9 (Goddus '70). The member I0 is mounted on a rocksha'ft I2 (Goddus 244) by means of a bolted connection to a bracket I4 keyed to the rockshaft, the member I0 forming a straight'slideway, as in the Goddu machine, on which the carrier IS (Goddus '72) is reciprocated by a cam roll I8 (Goddus '76) operated by a suitable cam slot I9 on the main camshaft 2i) (Goddus 54). The function of the rockshaft l2 will be mentioned later. The rockshaft l2 is motionless during the greater part of the machine cycle.

The carrier I6 carries at `its front end a guide member 22 for the outside former slide 24 and driver 26. The outside former slide 24 carries the outside former 25 at its left end (Fig. 3) and has an upstanding lug 28 connected by a link 3U with the member Il), at 3|. The construction is such that as the carrier I'B with the guide member 22 moves to the right (Fig. 3) the slide 24 with the outside former 25 is held back and moves to the left relatively to the guide 22 (which carries the staple wire) to form a staple.

The inside former 32 (Figs. 5, 6 and 7) is mounted in a hole in a cover plate 3.4 on the member 22 and is held down in operative position in the hole by a spring 36. It is lifted out of the path of the staple, just after the forming The cam has a long dwell 40 which permits the inside former to remain undisturbed in operative position until the staple has been formed. The inside former 32 thus moves with the guide 22, relatively to the then nearly motionless outside former 25.

The driver 26 is clamped in a sliding carrier 42 n having a roll and slot connection 44 with one arm of a two-armed driver cam lever 46 having a cam slot 48 in its other arm. The arms are pinned to a rockshaft 50 mounted in the sliding member I6. The cam slot cooperates with a roll on the end of a driver arm 52, pivoted in the member I6 at 53, which arm 52 is thrown clockwise, when the proper time comes, by a spring 54 (Fig. 4), having previously been latched to hold the spring under tension by a spring-pressed dog 56 mounted on the member I6 and hooking under an extension 58 of the arm 52. A roll 60 on the member I8 engages the extension 58 when the carrier I6 is drawn back (left in Fig. 3) and forces the arm 52 counterclockwise to retract the driver and latch the arm 52. When the arm 52 falls to operate the driver the rear face of the extension 58 is cushioned on a somewhat resilient abutment 62.

The arm 52 is unlatched by a roll 84 mounted on the machine fname and extending through a guide slot 66 in the carrier I 6, the slot having an upwardly extending part overlapping the tail of the latch 56 to permit the tail of the latch to strike the roll as the member I6 rotates clockwise about the axis of the shaft I2, as will be eX- plained, The members 52, 48, 46 and 42 remain motionless relatively to the carrier I6 as it moves to the right (Fig. 3) until the said clockwise rotation of the member I0 occurs to operate the latch.

'I'he shaft I2 is mounted in an adjustable eccentric bushing 68 rotatably mounted on the machine frame, as in the case of the corresponding shaft 2'44 of the Goddu machine, in order to provide an adjustment between the parts carried on the member l0 and on the carrier I6, respectively. 'Ihe bushing 68 is clamped in oriented position to the machine frame by a cap screw 68 and slot 691/2, and ifts rotation will shift its eccentric bore and the shaft I2 included therein.

The driving throat I0 mounted on the member 22, the deector mechanism 12, the edge rest 74 for the shoe, and the sole rest 'I6 may all conveniently be of the same construction and operation as the corresponding parts of the Goddu machine; the same is true of the pincer mechanism shown in Fig. 1 but omitted from the other iigures for the sake of clearness.

The member I0 is moved clockwise to drop the throat 'I8 and the deector mechanism 'I2 toward the sole of the shoe (Fig. 2) just prior to the driving of the staple by an arm I'I (Goddu 246) keyed on they rockshaft I2', and actuated by a cam roll 'I8 (Goddu 248) and a cam 'I9 (Goddu 250) on the camshaft 2D. The arm 'I'I turns the shaft I2 and its keyed bracket I4I to which the member I0 is bolted. The relation of this movement to the tripping of the driver lever has been mentioned.

The staple wire 86 is fed through a bushing 82 (Fig. 7) mounted on the guide 22 and having a hardened and ground inner end. The wire is pushed across in, front of the outside former against an adjustable abutment 84. It is sheared between the end of the bushing 82' and a hardened block 86 mounted on the side of the outside former slide 24 (Fig. 8). Provision is made for staples of varying length of leg by interchangeable cutter blocks 86a of varying thickness (Fig. 9). The side of the outside former slide is cut away as at 88 (Fig. 7) to accommodate a thicker cutter block .than the one shown. The wire is fed through a flexible tube 89 by a feed mechanism 90 (Fig. 1) which may be conveniently the same as that used in the Goddu machine.

In the operation of the machine the operator presents the shoe engagement with the edge gage 'I4 (Fig. 2) and with the sole rest I6 in position for the pincer jaws to engage that portion of the upper upon which a lasting operation is to be performed, and then starts the machine by depressing the starting treadle. The pincers then grip the upper and pull it heightwise of the last and inwardly over the insole in the manner described in the Goddu Patent No. 1,815,295. While the pincers are thus holding the upper the guide 22 is moved forwardly or inwardly over the bottom of the shoe in a path inclined toward the bottom face of the insole by the action of the cam I9 on the carrier I6. In this movement the upper-fastening mechanism, comprising the staple nozzle 'I0 and the deector 12', engages the margin of the upper at a point a little above the bottom face of the insole and lays the margin of the upper upon said face. In this operation the fastening mechanism engages the upper in a location slightly displaced lengthwise o-f the edge of the shoe upper from the pincer jaws. By the forward movement of the carrier I6 toward the center of the shoe bottom a section of staple wire is severed by the action of the moving cutter 82 in cooperation with the comparatively motionless member 86 and the section of wire is forced by the inside former 32 into the outside former 25 to form a staple. At substantially the same time also the carrier I6 is swung about the axis of the rockshaft I2 by the action of the cam 'I9 on the lever II to force the deiiector 'I2 and the staple nozzle downwardly against the upper with increased pressure. In predetermined time relation to these operations, and preferably at or near the time when the fastening mechanism arrives in the position indicated by Fig. 2, the gripper releases its hold on the upper and the downward movement of the nozzle and defleotor insu-res that the upper will be rmly pressed against the insole and held against loss of tension until the staple is driven. After the deflector 'I2 has been pressed hard against the work by the swinging of the carrier I6, the driver lever 52' is released by the latch 56 to the action of the spring 54 and the driver 26 is thereby rendered operative to drive the staple. After the staple has thus been driven and anchored by the deflecting mechanism, the carrier I6 is drawn a little to the right by the cam I8-I9 (Fig. 3) and swung upwardly by the cam 'IB- 19 to insure that the end of the driver 26 will not catch on the head of the staple, the carrier I6 is then further retracted to its starting position along with other operating parts of the machine, and the driver lever 52 is returned to the Fig. 3 position and latched.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for driving staples in shoes, shoe gaging mea-ns for positioning a shoe presented bottom upward, and means foi` forming and driving a staple through the lasting margin of the shoe upper into an insole assembled with said upper comprising a driver movable in a path extending obliquely downward and outward over the shoe bottom toward the said lasting margin, staple forming means located in the said path, and deflecting means at the end of said parth arranged to engage progressively different portions of the staple legs to curve them inwardly away from the insole edge and downwardly into the body of the insole.

2. In a machine for driving staples in shoes, means located in the plane of the insole of a shoe in the machine for gaging the edge of a shoe bottom, means for engaging the outer face of the insole to determine the position of the shoe heightwise, a slide guide pivotally mounted to swing toward and away from the insole, a slide slidable on the slide guide, staple cutting, forming and driving mechanism and a driving throat mounted collinearly on the slide in a line forming an acute angle with the outer face of the insole with its vertex in the neighborhood of the lasting margin of the shoe upper, whereby movement of the slide toward the shoe will cause the throat to wipe said lasting margin over the said face of the insole, the staple cutting and forming means being arranged to be operated by said overwiping movement of said slide, means for swinging the slide guide to carry said throat toward the overwiped lasting margin, a springactuated driving lever, a latch on the slide to hold said lever with the spring tensioned ready to drive a staple, and an abutment mounted on the machine frame and arranged to trip the latch as the slide guide is swung to carry the throat toward the shoe.

3. In a shoe stapling machine, a guide located above the outer face of the insole of a shoe in the machine and movable inwardly over said outer face to a position at an acute angle therewith from a point adjacent to the periphery of said insole and the margin of the upper lasted thereover, a staple driver and an outside former arranged to slide collinearly on said guide, an inside former mounted on said guide and moving therewith, a second guide pivotally mounted on the machine frame but motionless relatively thereto during a substantial part of the machine cycle, said first-named guide being slidable on said last-named guide in its movement inwardly over the insole, said outside former being connected to said last-named guide whereby the sliding movement of said rst-named guide will effect a staple forming relative movement of said formers, and means for operating said driver to drive a staple in a direction parallel to said firstnamed guide from a point above said outer insole face obliquely and outwardly toward the insole periphery.

4. In a shoe stapling machine, a guide located above the outer face of the insole of a shoe in the machine and movable inwardly over said outer face to a position at an acute angle therewith from a point adjacent to the periphery of said insole and the margin of the upper lasted thereover, a staple driver and an outside former arranged to slide collinearly on said guide, an inside former mounted on said guide and moving therewith, a second guide mounted on the machine frame but motionless relatively thereto during a substantial part of the machine cycle, said first-named guide being slidable on said lastnamed guide in its movement inwardly over the insole, means for holding the outside former from movement with the first-named guide during the said movement over the insole, whereby the sliding movement of said first-named guide will effect a staple forming relative movement of said formers, and means for operating said driver to drive a staple in a direction parallel to said firstnamed guide from a point above said outer insole face obliquely and outwardly toward the insole periphery.

5. In a stapling machine, a driver guide, a driver, inside and outside formers located on said guide, the inside former being movable in the guide to form the staple, and a cam mounted integrally with the outside former and having a rise constructed and arranged to withdraw the inside former after the staple is formed and before the driver strikes the staple.

6. In a stapling machine, a slide guide, a slide slidable thereon and having a slideway, staple driving mechanism mounted on the slide comprising an outside former slidable on the slideway, an inside former carried on the slide and movable relatively to the slide only in directions transverse to the slideway, means connecting the outside former to the slide guide whereby movement of the slide will cause the formers to approach each other to form a staple, and a cam in xed relation to the outside former arranged to lift the inside former out of the slideway after the staple is formed.

7. In a machine for driving staples in shoes, means located in the plane of the insole of a shoe in the machine for gaging the edge of a shoe bottom, means for engaging the outer face of the insole to determine the position of the shoe heightwise, a slide guide pivotally mounted to swing toward and away from the insole, a slide slidable on the slide guide, a driving throat and a driver mounted collinearly on the slide in a line forming an acute angle with the outer face of the insole with its VerteX in the neighborhood of the lasting margin of the shoe upper, whereby movement of the slide toward the shoe will cause the throat to wipe said lasting margin over the said face of the insole, means for swinging the slide guide to carry the throat toward the overwiped lasting margin, a spring-actuated driving lever, a latch on the slide to hold said lever with the spring tensioned ready to drive a staple, and an abutment mounted on the machine frame and arranged to trip the latch as the slide guide is swung to carry the throat toward the shoe.

ALFRED S. CLARK. 

